US Patent: 190,142
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| Art of manufacturing saw blades
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Patentee:
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| James A. House (exact or similar names) - Bridgeport, CT |
| USPTO Classifications: |
| 76/28 |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Apr. 11, 1877 |
| Granted: |
May 01, 1877 |
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Jeff Joslin
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Description: |
| "My invention chiefly relates to the forming of teeth upon fret or scroll saw blades. My object mainly is to both cut and set or completely form the teeth of a saw-blade at a single operation. To this end my improvement consists in forming the teeth upon the blade as it is fed: forward by successive cuts of a chisel or cutter reciprocated at an angle to the edge of the saw-blade, operating in, or substantially in, the plane of the blade, and presented to the blank with its point or edge inclined alternately in opposite directions, whereby the teeth are pressed or forced slightly sidewise, to the right and left alternately, as the cuts are made from the edge of the blank toward its center or back. Another object of my invention is to cut the teeth by a chisel operating upon a saw-blade edgewise thereof and at an acute angle thereto. To this end my improvement consists in forming the teeth upon a saw-blade by means of a reciprocating chisel moving in the plane of the saw-blade, and operating by successive cuts upon the edge of the blade as it is moved in a path intersecting that of the chisel. My object, further, is to form a number of saws from a blank by automatically cutting it up into widths to form the blades at the same time the teeth are being cut; to which end my improvement consists in traversing the blank so as to present the saw-blade edge to the chisel for cutting the teeth, as before described, and moving the blank past and in contact with a cutter, to gradually cut the blank, and finally sever the toothed blade therefrom." |
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